Online PHP editor | refs for lUcVV

@ 2022-05-08T10:44:46Z

<?php

$var = "some value";

unset($var);

$isnull = is_null($var);
$isnull2 = ($var === null);
$isset = isset($var);
var_dump($var);
var_dump($isnull);
var_dump($isnull2);
var_dump($isset);